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WGU Data Management - Foundations Exam - Topic 2 Question 3 Discussion
Actual exam question for
WGU's
WGU Data Management - Foundations exam
Question #: 3
Topic #: 2
[All WGU Data Management - Foundations Questions]
Topic #: 2
Which function measures a numeric value's distance from 0?
Suggested Answer:
D
The ABS() function in SQL returns the absolute value of a given number, effectively measuring its distance from zero.
Example Usage:
sql
SELECT ABS(-50), ABS(50);
Result:
50 | 50
This function ensures that numbers are always positive, regardless of their original sign.
Why Other Options Are Incorrect:
Option A (CONCAT) (Incorrect): Used to combine strings (not numbers).
Option B (LOWER) (Incorrect): Converts text to lowercase, not numerical operations.
Option C (FROM) (Incorrect): Part of SELECT FROM queries, not a function.
Thus, the correct choice is ABS(), which computes the absolute value of a number.
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